Mazz: I will say that YOU are not looking at the talent tree correctly.
Attack Power means nothing for an unholy / frost DK

Nov 14,2013: [WC] You cast Frostbolt at Derek and deal 94 damage with a slowdown effect (Affected by: Critical)
Nov 17,2013: (versus mage boss) [WC]You cast Frostbolt at BonBons and deal 165 damage with a slowdown effect (Affected by:Critical)
For norm frostbolt of about 40 in this setup I say that is rather good :D..